This is a Simulation of Load rebalancing in cloud with CloudSim and Hadoop+Mapreduce integration On NetBeans platform. Real text load is given to the broker which first balances the load using cost based balancing. Once chunk of files are stored at different data centers, They are passed to Mapreduce. Mapreduce reduces the size, invokes a wordcount job and puts the data in a HDFS. Time between Balancing and Rebalancing is analyzed